502 error with cgi version on IIS7

[chelyapov]

Hi,

I'm trying to run the cgi version of Zoom on IIS7 (Windows Server 200. I read this http://www.wrensoft.com/zoom/support/faq_cgi_iis.html carefully and followed the steps twice. It caused a 500 internal server error.

I asked my hosting company for assistance, and I think they went in and removed the CGI module mapper (there was another one in place already, I think for Perl), which now results in a 502 error - Web server received an invalid response while acting as a gateway or proxy server. They also gave me a little more information from the error logs:

HTTP Error 502.2 - Bad Gateway
The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are "Unrecognized character \x7F; marked by <-- HERE after <-- HERE near column 1 at [removed filename] line 1. ". Detailed Error Information
Module CgiModule
Notification ExecuteRequestHandler
Handler CGI handler
Error Code 0x000000ff
Requested URL [removed URL]
Physical Path [removed path]
Logon Method Anonymous
Logon User Anonymous
Most likely causes:
•The CGI process was shut down or terminated unexpectedly before it finished processing the request.
•The CGI process has a flaw and does not return a complete set of HTTP headers.

They think it is a header issue. I did play around with the timeout numbers, and that had no effect.

Have you encountered this before? Do you know how I can fix this? I'm still pretty new to IIS7 and Windows servers in general. The same script runs fine in Apache.

Thanks in advance.

[wrensoft]

I think the server is still setup to execute the CGI script as a Perl script.
So Perl tries to execute the binary CGI, then fails complaining about bad Perl code, and the server then doesn't get a valid set of headers back, and throws the error above.

This is also covered in our FAQ
Q. I get an error similar to "Unrecognized character \x90 ... "

[chelyapov]

Thanks. I tried renaming the file extension to exe and loading it. A Windows dialogue pops now that says "You have chosen to open search.exe. Would you like to save this file?" with the options to save or cancel.

I will contact my hosting company again for further advisement... Earlier, I did attempt temporarily removing the Perl cgi handler and leaving the other one but that did not work for me either.

The FAQ you directed me to has a link to a Microsoft knowledge base article, but that link appears to be broken and results in a 404.

If you have more recommendations, I would be happy to hear them

Thanks again.

[wrensoft]

The MS knowledge base article
http://support.microsoft.com/default...b;EN-US;884764
only referred to IIS5 and IIS6. I don't think it applies to IIS7.

There are details, with screen shots here, showing how to setup CGI on IIS7
http://www.wrensoft.com/zoom/support/faq_cgi_iis.html

[chelyapov]

Oh, OK. Yeah, I did the CGI setup as shown in that FAQ...

I was reading through some of the other posts, and it occurred to me that maybe I set up Zoom incorrectly. I just took what was running on Linux and tried to put it on IIS7. I noticed in another post that there is apparently a CGI/Windows version... In my version of Zoom V6, I see the "CGI/Linux" option (what I used) but I don't see CGI/Windows.

[chelyapov]

Oh, wait. I just saw it pop up with the platform option.

Going to try this over from the beginning.

Thanks for your patience.